The ferry from Kagoshima runs 4 hours on the high-speed Toppy (JPY 8,400), and Yakushima rewards the crossing with a dramatic first impression: a dark green mountain rising straight from the ocean. The whole island is essentially a single granite peak, wrapped shoulder to summit in forest.
Base yourself at Yakushima South Village (dorm bed JPY 3,500, private room JPY 6,500) — clean, basic, with a communal kitchen and an owner who tends to sketch a hand-drawn island map and circle the one onsen you cannot miss before dark.
That onsen is Hirauchi Kaichu Onsen, a natural hot spring on the southern coast accessible only at low tide. You climb down the rocks to a pool carved into the granite shoreline, the Pacific just 3 meters away. The pool holds around 40 degrees C; the ocean beside it sits near 18 degrees C. Alternating between the two as the sun drops behind the island is the kind of hour Yakushima does best.
Cost: JPY 200 (honor system, coin box at the trailhead). Worth: considerably more.
For dinner, order the flying fish (tobiuo), Yakushima's signature dish. Fried whole — crispy wings and all — at a small izakaya in Miyanoura for JPY 1,200, it tends to have flown out of the ocean that very morning.
This is the reason many travelers come. The Shiratani Unsuikyo Ravine is the forest Hayao Miyazaki used as reference for Princess Mononoke, and walking into the real-world inspiration is genuinely surreal.
Entry: JPY 500. Take the 3-hour loop trail that passes through the Mononoke-hime no Mori (Princess Mononoke Forest) section. The path follows a stream through ancient cedars draped in moss so thick it reads like green fur. Every rock, every root, every fallen log is carpeted in it, and the light filters through the canopy in green-gold shafts.
Come on a lightly raining day if you can — the best possible condition. The moss swells and turns luminous, water drips from every surface, and the sound is extraordinary: not silence, but a layered water-on-moss murmur.
Stop at the Taikoiwa (Drum Rock) viewpoint, a granite outcrop overlooking the forest canopy with a river gorge below. In the film, this is where the Forest Spirit walks — and standing there, you half expect to see it.
Total walking time: 3.5 hours. The trail is moderate — some stone steps, some root climbing, one short scramble. Not as demanding as the Jomon Sugi trek, but emotionally? Every bit as intense.
Set the alarm for 3:30AM. The bus from the Yakusugi Museum to the Arakawa trailhead costs JPY 1,400 round trip and requires a reservation at the museum the day before — skip this and you can't access the trailhead.
Start walking around 5:45AM. The first 8km follow old logging railway tracks: flat, easy, and atmospheric in the pre-dawn mist. The rails turn slippery when wet (expect them wet) but stay walkable. Several named cedars line the way — Sandai Sugi (third-generation cedar, 3,000+ years) and the Wilson Stump, a hollow stump big enough to stand inside; look up from within and the opening frames a perfect heart.
From km 8 to 10.5, the climb begins: steep, rooty, muddy. This section is genuinely hard after 8km of flat walking, and legs tend to switch from "fine" to "complaining" fast. Boardwalks help, but between them the trail is raw forest floor.
And then — the viewing platform.
The Jomon Sugi stands alone in a clearing, roped off at about 15 meters distance, its trunk 16.4 meters around. It looks less like a tree than a geological formation: gnarled, twisted, massive, its branches broken and regrown many times across millennia.
Give it twenty minutes. Estimates put it between 2,170 and 7,200 years old. Even the lower figure means this tree was a seedling during the Trojan War, already 1,000 years old when Christ was born, standing here before Japan existed as a concept. That's not something you process intellectually — you process it in your body: a heaviness in the chest, a sense of scale that makes your own timeline feel very brief.
The return hike runs about 4.5 hours, for a total of 10 hours on the mountain. Pack three rice balls and two energy bars, expect ruined legs by the time you reach the bus, and count every step as worth it.
Rise at 4:30AM and drive to Nagata Inaka-hama beach on the north coast, one of Japan's most important sea turtle nesting beaches. Loggerhead and green turtles come ashore from May to August.
Dawn is the wrong time for nesting — turtles come at night — so a live sighting is unlikely. What you can find are fresh tracks: wide drag marks running from the waterline to the upper beach and back, evidence that a 100kg turtle passed through hours earlier, laying eggs that will hatch in 60 days.
The beach itself is beautiful — 1km of golden sand with the island's mountains rising directly behind it, and few tourists at dawn.
Then catch the 11AM Toppy back to Kagoshima.
| Item | Cost (JPY) |
|---|---|
| Kagoshima-Yakushima ferry (round trip) | 16,800 |
| Accommodation (3 nights, dorm) | 10,500 |
| Shiratani Unsuikyo entry | 500 |
| Arakawa bus (round trip) | 1,400 |
| Meals (3 days) | ~6,000 |
| Hirauchi Onsen | 200 |
| Total | ~35,400 (~$235 USD) |
Yakushima is remarkably affordable for Japan. The expensive part is the ferry or flight from Kagoshima (JAC flights run JPY 12,000-20,000 each way). Once on the island, accommodation and food stay reasonable.
Bring rain gear. Bring hiking boots. Bring patience for the 22km walk.
And bring the willingness to stand in front of something 3,000 years old and feel, just for a moment, the weight of time.
